FOSDEM 19 Announcements Discussion

[blu]

blu - hope this answers your question, directly from the device tree:
Little Cores:
dynamic-power-coefficient = <100>;
capacity-dmips-mhz = <485>;
Big Cores:
dynamic-power-coefficient = <436>;
capacity-dmips-mhz = <1024>;

Thanks, MrFixit. These are the fresh rk3399 dynamic-power coefficients for the EAS, I presume. I was looking more toward some actual run stats now that a preliminary pbpro image is available.

A time/performance chart of some CPU/GPU/both-stressing workload (to your taste : ) of 'elapsed time' vs 'momentary performance' axes -- with or without thermal measurements over time (those really become redundant as power and/or thermal throttling would be apparent on the performance axis) -- that would indicate thermal/power behavior of the system for the given workload and power+thermal conditions of the system.

Say, if your pick was mp3 encoding (just a random pick), the corresponding chart would be:

Code:

bits/s
|                
|........     .... (<- some measured performance series here)
|        .....    
|
+----------------- time elapsed, minutes

Clearly such a chart can be time-consuming, but the more people get their hands on the image + hw, the cheaper the amortized effort will be ; )